大学英语写作要点四六级考试中的短文写作每一段均可包括主题句+扩展句+终结句，每段都可由这三句展开，其中扩展句可并列使用这就是三句式段落展开法。同时，四六级考试中的短文写作又都包括主题段+扩展段+终结段，每篇短文写作都可依这样的模式展开，这就是三段式短文展开法
大学英语写作要点 • 四六级考试中的短文写作每一段均可包括主题句+扩展句+ 终结句，每段都可由这三句展开，其中扩展句可并列使用， 这就是三句式段落展开法。 • 同时，四六级考试中的短文写作又都包括主题段+扩展段+ 终结段，每篇短文写作都可依这样的模式展开，这就是三 段式短文展开法
内容；结构；用词
内容；结构；用词
1.主题句基本概念主题句是论说文或说明文中阐明段落中心思想或主要内容的核心句子，对全段的论述起着宏观指导和限制作用，是构成英语段落的重要手段。主题句就象公路上各路段的路标一样，引导驾驶员依循指定的路线行驶，例如：以避免迷失方向
1. 主题句基本概念 主题句是论说文或说明文中阐明段落中心思想或 主要内容的核心句子，对全段的论述起着宏观指导和限 制作用, 是构成英语段落的重要手段。主题句就象公路 上各路段的路标一样，引导驾驶员依循指定的路线行驶， 以避免迷失方向。例如：
If a personexpects to do things successfully, heshould have confidence.It is confidence that enables aperson to face the obstacles or drawback that stand in hisway. In fact, one can hardly accomplish anything if he hasdoubt about his ability in what he does. When one'sconfidence is shaken, he tends to become discouraged anddepressed and chances are that he may fail to do what hecould. In contrast, a person who never loses heart willsucceed in what seems impossible
If a person expects to do things successfully, he should have confidence. person to face the obstacles or drawback that stand in his way. In fact, one can hardly accomplish anything if he has doubt about his ability in what he does. When one’s confidence is shaken, he tends to become discouraged and depressed and chances are that he may fail to do what he could. In contrast, a person who never loses heart will succeed in what seems impossible. It is confidence that enables a
2.主题句的呈现方式（1）直接表达式这种方式多用简单句，毫不拖泥带水，直奔主题
（1）直接表达式 这种方式多用简单句，毫不拖 泥带水，直奔主题。 2.主题句的呈现方式